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Chemistry Essays

Result for Subject Chemistry:
1168 essays
The Hazards and Risks Associated with Sour Gas Chemistry Case Study
10 pages (2814 words) , Download 0 , Case Study
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In Belgium, in 2008, an incident occurred at a refinery in Antwerp. The company produces fuels like butane, propane, benzene, kerosene and gas oil. On the day of the incident, a power line failed to render the refinery without electric power supply. This caused a safety valve to open and release approximately 40m3 of hydrogen sulfide.
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Fingerprint Image Enhancement Chemistry Lab Report
5 pages (1531 words) , Download 0 , Lab Report
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As you know the synthetic or physical upgrade of fingerprints, including their ensuing imaging, is presumably a standout amongst the most widely recognized exercises in scientific science. It is not as a matter of course a clear process, as each substrate and each impression is distinctive, so a lot of expert experience and aptitude is eventually included.
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Flame Photometry Chemistry Lab Report
7 pages (2002 words) , Download 0 , Lab Report
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Photometry equipment was switched on and the solutions were aspirated into the unit one by one. The results from the readings were recorded in a table. When the solution was passed through the flame the solvent matter evaporated leaving the metals behind. The flame burned the metal into an atomic state. The metals iron moved from a lower energy level to a higher energy level.
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The Basis of Flame Photometry Chemistry Research Proposal
7 pages (2020 words) , Download 0 , Research Proposal
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Potassium and sodium are very important elements as they perform vital biological functions in the human body. They are required by the body for cellular stability, but levels that are out of normal range can result in severe problems with neuromuscular, cardiac, and renal function (Peate & Dutton, 2014, 201).
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Soy Sample Potassium and Sodium Concentration Chemistry Assignment
7 pages (1917 words) , Download 0 , Assignment
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A good calibration curve should have an R-squared value greater than 0.97; therefore our curves were within the required range. The results of emission intensity fluctuated at times, but the sources of error mainly revolve around the photometer. Emission intensity fluctuation in the photometer reading was an area of concern.
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Forensic Food Analysis Chemistry Assignment
7 pages (2104 words) , Download 0 , Assignment
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But high intake of sodium leads to high blood pressure in some people or a serious build-up of fluid in people that result in cardiovascular disease, congestive heart failure, cirrhosis, or kidney disease. Potassium is critical to heart function and plays a major role in skeletal and smooth muscle contraction which makes it essential for normal digestive and muscular function.
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Case Study Based On River Pollution Chemistry Case Study
9 pages (2669 words) , Download 0 , Case Study
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However, such environmental disasters occur when the capacity of the environment to absorb such pollutants is exceeded. Apart from observing the environmental problems that occur in any given area such as flooding, species extinction, environmental analysis involves an investigation of the principal causes of such events and proposing recommendations to ensure that such events do not recur.
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Practical for Extraction Ion Profiles to Confirm an ILR Chemistry Research Proposal
6 pages (1974 words) , Download 0 , Research Proposal
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The volatile liquid evaporates due to heat. This alters the chemical composition of the liquid. As a result, the chromatogram of the liquid that has been evaporated would be different from that which has not been evaporated. To solve these problems, the standard collection can be expanded to include different levels of evaporated chromatograms of liquid.
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Experiment on Sunscreens Chemistry Report
7 pages (1807 words) , Download 0 , Report
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The absorbance wavelength is between 250 and 300 nm, which means that the screens protect the skin from ultraviolet rays in the UVB region. The Active dry touch lotion shows slightly better UVB absorbing capability compared to the rest of the sunscreens, followed by kids' sunscreen and sport respectively. Below are the active ingredients in each of the sunscreens, and their proportions.
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Sunscreens: Evaluation and Regulatory Aspects Chemistry Assignment
7 pages (1817 words) , Download 0 , Assignment
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UV light absorption causes most of the sunscreen active ingredients to undergo structural changes or chemical reactions on the skin. Normally, these ingredients quickly return to their original state to absorb more UV radiation. However, these ingredients may degrade with time and lose their UV protectiveness, hence lowering the absorbance (Lowe).
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ZnO Quantum Dots Chemistry Lab Report
6 pages (1643 words) , Download 0 , Lab Report
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Synthesis of three dimensional ZnO nanostructures through the hydrothermal process by use of ammonia and zinc acetate at a temperature of 65oC yields successful results. The temperature during the synthesis process has an effect on the particle size, bandgap, sensitivity, and structural defects. Increase in temperature beyond the required temperature results in an increased size of particles.
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Silver Nanoparticles Chemistry Research Proposal
5 pages (1427 words) , Download 15 , Research Proposal
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The wavelength at which this absorbance takes place is an indication of the particle size of the element. Most peak absorptions of the solutions occurred between 500 nm and 600 nm of wavelength. This optical spectrum of the nanoparticles is due to surface plasmon absorption. Characterization of metal nanoparticles is very important when it comes to their applications in various fields.
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Magnetic Nanoparticles: Ferrofluids Chemistry Lab Report
7 pages (1778 words) , Download 0 , Lab Report
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Commercial magnetite fluids consist of micro-meter particles that cannot be suspended by Brownian motion, but instead, will settle after some time due to a difference in inherent density between the particles and the carrier fluid. The surfactant used overcomes the attractive magnetic and Van der Waals forces between particles in a ferrofluid (Pant, Rashmi, and Krishna).
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2NaNO4 Contact Angle Experiments on Self-Assembled Monolayers Chemistry Lab Report
6 pages (1576 words) , Download 0 , Lab Report
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Control of wetting behavior of both liquids and solids by measurement of contact angle has some important industrial applications, such as the establishment of how clean semiconductor wafers are, penetration of pesticides when applied to plants, waterproofing materials among many other fields of applications.
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Spectrophotometric Approach for the Analysis of Glucose Chemistry Lab Report
6 pages (1682 words) , Download 1 , Lab Report
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Measurement of glucose concentration is a basic laboratory technique that can be utilized in both clinical and industrial applications. Accurate measurements of glucose concentration are very significant in the diagnosis and management of diseases such as diabetes mellitus, hyperglycemia, and hypoglycemia.  
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Analysis of Surfaces Using an Atomic Force Microscope Chemistry Lab Report
8 pages (2275 words) , Download 1 , Lab Report
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The AMMRF Myscope website provides SPM modules that make it easy to understand the principles of working of AFM. The virtual online AFM is an instructional primer and tool that simulates the real instrument. It can greatly assist a learner to understand how atomic force microscopy is used to produce high-resolution images of specimens for scientific or industrial applications.
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Imaging and Analysis of Surfaces Using Scanning Electron Microscopy Chemistry Lab Report
6 pages (1628 words) , Download 1 , Lab Report
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The virtual online SEM is an instructional primer and tool that simulates the real instrument. It can greatly assist a learner to understand how scanning electron microscopy is used to produce clear images of specimens for scientific or industrial applications. It is also easier to learn to work with the real instrument after working with a virtual SEM.
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Electropolymerized Conducting Polymers Chemistry Lab Report
7 pages (1828 words) , Download 0 , Lab Report
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The biosensor is simple and less expensive to make and its performance can be easily tested compared to the TNT biosensor. The TNT biosensor has a limited detection with a catalytic response that depends on the concentration of the solution.  It also has high flexibility and therefore, highly adaptable compared to silicon sensors.
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Atomic Structure And Bonding Chemistry Case Study
8 pages (2132 words) , Download 1 , Case Study
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Scientists have accurately established that atoms achieve the status of stability by either losing gaining or sharing electrons. The nucleus comprises the neutrons and the protons. The addition of the neutrons and the protons gives the atomic mass of any specific element in the periodic table.
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Synthetic Diamond in Tools Chemistry Report
10 pages (2603 words) , Download 0 , Report
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They possess the same atomic structure, physical properties, and chemical composition that real diamonds have. The diamond is also known as CVD diamond or HPHT diamond after the two common production methods referred to the chemical vapor deposition and high-pressure high-temperature crystal formation methods respectively.
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Demonstrating the Flashpoints of Various Chemicals Chemistry Assignment
6 pages (1679 words) , Download 0 , Assignment
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A flashpoint is identified by putting little quantity of the sample to be tested into the testing cup apparatus. Cooling or heating is done till the expected temperature, i.e. the lowest temperature level whereby there is the release of ignitable vapor. A flame is introduced to the sample thus bringing about a little flash over the liquid. 
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Enclosure Fire Dynamics Chemistry Assignment
5 pages (1658 words) , Download 0 , Assignment
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Superficial- this where is where the skin epidermis is affected but blisters do not form Partial-thickness - burn is where the skin epidermis and dermis are affected and this type of burn is deep. Blisters are formed in these partial degrees burns which take between two to three weeks to heal.
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Carbon Emissions Chemistry Report
14 pages (3970 words) , Download 0 , Report
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Apart from playing the important role of photosynthesis in plants, it is also a weighty component in the adjusting of the globe’s temperatures in what is commonly referred to as the greenhouse effect. Co2 is one of the greenhouse gases, hence plays a vital function as far as warming of the planet is concerned.
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Carbon Dioxide Chemistry Report
12 pages (3637 words) , Download 0 , Report
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This shows that carbon dioxide is important for sustainable living in a balanced world. Moreover, carbon is only harmless to the atmosphere at controlled levels that do not exceed its percentage proportion in the atmospheric composition.However, various human activities escalate carbon dioxide levels in the atmosphere, posing dangers to the environment (Charles, & Varma, 2010, p.13).
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Carbon Emission as a Global Problem Chemistry Report
12 pages (3534 words) , Download 0 , Report
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Human activities that result in GHGs production include industrial production, farming, motor vehicles, aviation, and electricity production among others (Scientific Assessment 2010). The United States of America contributes greatly to the global carbon emissions with other fast-developing nations the following suit due to increased burning of fossil fuel.
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Polymers: Polypropylene + Polyamide 6 Blends Chemistry Literature review
11 pages (3156 words) , Download 0 , Literature review
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Both artificial and natural polymers play a significant and pervasive role in everyday life. Polymers are inclusive of a wide variety of categories from the common artificial plastics which include polystyrene to natural biopolymers which include DNA and other proteins that are very significant to biological composition and roles.
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Blue-White Selection and Beta-Galactosidase Assay Chemistry Lab Report
8 pages (2155 words) , Download 0 , Lab Report
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The cells are grown in the presence of x-gal. If there is successful ligation, the colony will remain white, but if not, the colony would turn blue. This procedure is a simple and faster way of detecting successful ligated genes. The organic X-gal compound contains galactose which is associated with a substituted indole and is normally used to test the presence of β-galactosidase.
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Solubilization of Hydrophobic Drugs Chemistry Essay
6 pages (1650 words) , Download 0 , Essay
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Solubilization of hydrophobic drugs is a commonly encountered problem in screening analysis of new drugs together with the preparation as well as its development. There are a number of ways to counter this challenge in order to improve the solubilization of the hydrophobic drugs to improve their bioavailability. 
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The Chemical Reactions of Living Cells Chemistry Assignment
7 pages (2024 words) , Download 0 , Assignment
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Not all of the cells are transformed, due to inefficiencies, a given portion of the cell takes up the plasmid. The transformation efficiencies for the colonies in the second ligation plate had 20100 transformance/µg, which is higher compared to transformation efficiencies in the first ligation plate which had 21 transformance/µg.
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Miniplasmid DNA Preparation Chemistry Lab Report
8 pages (2338 words) , Download 0 , Lab Report
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Plasmids can also be used to propagate foreign genes and are referred to as vectors (Casali & Preston, 2003). In this practical, purified plasmid pBR322 was isolated from E-coli strains grown in the presence of ampicillin. It consists of 4,361 base pairs together with tetracycline (Tet) and antibiotic resistance genes for ampicillin (Amp).
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Carbon Aerogels Chemistry Literature review
11 pages (3210 words) , Download 2 , Literature review
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in 1980 carbon aerogels were created and have become the most preferred aerogel. This is attributed to the fact that carbon aerogels have numerous applications in the industrial world. These applications are dependent on the various properties of carbon aerogels. However, in order to understand these applications, it is equally important to understand how carbon aerogels come into existence.
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Sporopollenin: Imaging and Spectroscopy Chemistry Literature review
11 pages (3572 words) , Download 0 , Literature review
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Wakil et al. (2010), state that the word sporopollenin was coined by Zetzschel in a description of the extremely resilient exine of spores and pollen as well as other microspores. Archeologists have found pristine pollen grains that have survived inside sedimentary rocks for periods agreed upon as being over 500 million years.
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Analysis of Composition Corrosion Cells Chemistry Assignment
14 pages (4122 words) , Download 0 , Assignment
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The experimental setup consisted of water with a cleaning agent (electrochemical corrosion) and freshwater with oxygen (chemical). In such circumstances as these, water with a cleaning agent catalyzed the corrosion process of the metal while conditions with oxygenated water occurred naturally and slowly as compared to its counterpart.
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Drugs Mode of Action Chemistry Assignment
14 pages (3853 words) , Download 1 , Assignment
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Relationship of neuronal function to nutrition: All the nervous system phases including the activities at synapses and axons are influenced by nutritional status. The brain is fueled by glucose, and glucose is metabolised in presence of minerals and vitamins in the mitochondria, to form energy intermediates like adenosine triphosphate.
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The Ultimate Solution to Accidents and Fire Resulting from Chemicals Chemistry Article
15 pages (3971 words) , Download 1 , Article
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The company must put in place the necessary fire detection and fire-sensing systems that can help detect and report fire incidences in case a person is not near the fire source. Fire alarms, smoke signals, and sensors that can detect temperature changes are part of the essential equipment to be installed at the premises.
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Facts about the Formaldehyde Chemical Chemistry Term Paper
12 pages (3000 words) , Download 0 , Term Paper
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The Company’s discharge is likely to affect the wildlife in the river. Accidents during transportation of the gas may pollute the environment. Likewise, uncontrollable environmental risks are mostly fatal which may lead to loss of life of the company’s laborers or physical property. Gas leaking from the tanks also contributes to air pollution.
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Hydraulic Fracturing in Oil and Gas Well Reservoir Chemistry Term Paper
8 pages (2257 words) , Download 0 , Term Paper
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Early exploration of gas and oils looked into finding the conventional reservoirs that allowed the hydrocarbons to flow naturally and with ease to the surface. A prolonged period of oil and gas exploration has forced new discoveries of pressure form of simulation to provide sufficient hydrocarbon as the conventional reservoirs got depleted.
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Vulnerability in Chemical Sectors in the US Chemistry Research Paper
11 pages (3058 words) , Download 0 , Research Paper
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The paper will give a description of the critical infrastructure sector that is an asset or a system that maintains a vital function of a society. As a component of critical infrastructure, a chemical facility is an asset of the system. The chemical sector has vulnerabilities that threaten if functions and production. Those vulnerabilities will be discussed in this paper.
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Chemical Safety Usage and Handling Chemistry Lab Report
9 pages (2264 words) , Download 0 , Lab Report
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Chlorine, Hydrochloric Acid, and Sodium Hydroxide are the most dangerous chemicals in the WTP. Hydrochloric acid (HCl), in itself, is a strong acid that has a concentration of up to 35 %. This, therefore, means that it should be handled with a lot of care since it can cause severe skin burns as well as cause damage to metallic materials. 
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Analytical Chemistry: Today's Definition and Interpretation Chemistry Literature review
7 pages (2146 words) , Download 0 , Literature review
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Štulík & Zýka in their definition gives more emphasis on the multidisciplinary nature of analytical science in their conceptualization. According to them, analytical chemistry entails application and experimentation in the discipline of natural science. They note that the discipline is not only anchored on chemistry, but also physics, biology, information theory, and other fields of technology.
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Combustion and Fire Chemistry Assignment
8 pages (2224 words) , Download 0 , Assignment
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The development of fire protection measures is constantly challenged by architects with unique features and structures. As a result, fire protection engineers use performance-based designs. In this case, the engineer has to be aware of a fire scenario and the ability to predict fire behavior with practical engineering tools.
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Effect of Salinity on Cell Diameter Chemistry Report
9 pages (2347 words) , Download 0 , Report
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This test is used in identifying the glass type to which the two samples of glass belong to. From table 4 the mean values of the different compositions of glass in each glass type have been given. From the table, it can be observed that the milk bottle has the highest value of Na2O with a value of 16.33 while the least was 5.8325which was recorded in pyrex utensil.
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The Importance of Proteins to Living Organisms Chemistry Essay
6 pages (1886 words) , Download 0 , Essay
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There are four structures namely quaternary, tertiary, and secondary, and the primary structures. Some of the roles that are played by the proteins in the body of the organism include transportation, growth and development, Signaling cascades, cell signaling or ligand binding, cellular functions, hormonal functions, and also catalytic functions.   
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Spectroelectrochemical Studies of Fluorine and Dibenzothiophene S Chemistry Assignment
33 pages (10449 words) , Assignment
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The reaction of hydroxymethyl-EDOT with bromodecane gave the decyloxy substituted EDOT 6 in a 95% yield. Lithiation of 6 with n-butyl lithium and reaction with chloro tributyltin gave the stannyl derivative 5 as a mixture of two regio-isomers (yield 95%). Bromination of dihexylthienopyrazine with NBS gave the Bromo compound 3 in 60% yields.
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Mans Quest for Energy Leads to Environmental Destruction Chemistry Essay
7 pages (2010 words) , Download 0 , Essay
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Energy can be defined as the ability to cause change or do work or the aptitude of a physical structure to execute work. There are diverse forms of energy which include potential energy, kinetic energy, chemical energy, thermal energy, nuclear energy, and electric energy. Energy is lost when it is transferred from one form to another and this is termed as a necessary evil.
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Corrosion Mechanisms and Processes Chemistry Term Paper
7 pages (2177 words) , Download 0 , Term Paper
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During the early times where indirect methods of controlling corrosion are yet to be discovered, mankind has struggled to overcome the limitations of their most astounding discovery, the metals, knowing that all the efforts they have done to extract and process these metals from their ores will be in vain if the rate of corrosion is not reduced.
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Stress Corrosion Cracking Chemistry Coursework
7 pages (2161 words) , Download 0 , Coursework
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When metals were discovered during the Bronze Age, so much of human society has changed and so much has been achieved. The development and progress brought about by the discovery and the utilization of metals, however, is seriously impeded by the elements that tend to destabilize its strength and hence, usability – rusts or corrosions (Bertolotti & Hurst, 1978).
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Analysis of Materials: Corrosion and its Associated Effects Chemistry Term Paper
8 pages (2459 words) , Download 0 , Term Paper
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Corrosion is a serious problem but there is no definite technology that could counter the effects of corrosion. Existing technology only slows down the rate of corrosion in metals by sheathing the surface of the metal with a protective coating that enhances the hardness of the material as well as its resistance to oxidation. 
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Analysis Iodine Methodology Chemistry Assignment
5 pages (1510 words) , Download 1 , Assignment
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Iodine deficiency leads to cognitive function during childhood. Studies that have been carried out by various scientist shows, for example, moderate iodine deficiency specifically in children led to a great reduction in IQ by almost 12 to 13.5 points. Iodine supplementation and especially for children who stay in areas with iodine deficiency seems to be affected both physically and mentally.
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Post Translational Modification and Glutathionylation Chemistry Thesis
17 pages (5650 words) , Download 0 , Thesis
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The proper understanding of the pathways involved in the process of glutathionylation not only helps us to understand the reasons and causes of the disease but will also prove to be a trigger to find the cure for the diseases thereby decreasing the sufferings of many patients who are in a dire need for such treatments.
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